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A069591
Smallest prime in which the n-th significant digit is a 7.
6
7, 71, 701, 7001, 70001, 700001, 7000003, 70000027, 700000001, 7000000001, 70000000033, 700000000009, 7000000000009, 70000000000009, 700000000000051, 7000000000000037, 70000000000000003, 700000000000000033
OFFSET
1,1
MAPLE
7, seq(nextprime(7*10^j), j=1..32);
MATHEMATICA
Join[{7}, NextPrime/@(7*10^Range[20])] (* Harvey P. Dale, Jun 17 2021 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Mar 25 2002
EXTENSIONS
More terms from Sascha Kurz, Mar 28 2002
STATUS
approved